| 1854 - 480 páginas
...investigation of this point has fixed the " mechanical equivalent " of a " unit of heat " — that is, of the quantity of heat which would raise the temperature of a pound of water one degree F. — at 772 pounds lifted one foot temperature and equally expanded by heat under that constant pressure,... | |
| 1864 - 798 páginas
...expressed according to the French standard, 425 kilogrammetres ; that is, he determined that the amount of heat which would raise the temperature of a pound of water one degree Fahrenheit would, if all applied mechanically, be sufficient to lift one pound weight 772 feet high,... | |
| 1868 - 638 páginas
...772 pounds to the height of a foot you have 772 foot-pounds. Now, this quantity of 772 foot-pounds, which would raise the temperature of a pound of water one degree, is termed " the mechanical equivalent of /if at." In lifting a weight from the earth we are overcoming... | |
| Melbourne nat. mus. of Victoria - 1871 - 236 páginas
...temperature that the same quantity of heat will produce in different substances. The quantity of heat that would raise the temperature of a pound of water one...degree, would raise the temperature of a pound of iron nine degrees, and of a pound of lead thirty-two degrees. And again, the heat requisite to convert into... | |
| Robert Galloway - 1888 - 378 páginas
...body •when raised or lowered from one temperature to another. Let the unit of heat be that amount of heat which would raise the temperature of a pound of water from 0° to i° C. If H be the specific heat of any substance, it follows from the definition of specific... | |
| Thomas Hubbard Musick - 1890 - 390 páginas
...be then suddenly arrested, its temperature will be raised one degree ; and conversely, the heat that would raise the temperature of a pound of water one degree, would, if applied by a steam-engine or otherwise, raise 772 pounds one foot high." " The principle to be educed... | |
| Ebenezer Cobham Brewer - 1891 - 1052 páginas
...then suddenly arrested, its temperature will be raised one degree ; and, conversely, the heat that would raise the temperature of a pound of water one degree would (if applied to a steam engine) raise 772 Ibs. one foot high. Jour de Rois (Le). The Epiphany. (Twelfth... | |
| Isaac Winter Heysinger - 1894 - 378 páginas
...employed, it is not manifest as sensible heat. Professor Tyndall, in "The Forms of Water," states that " The quantity of heat which would raise the temperature...raise the temperature of a pound of iron ten degrees." Professor Stewart, in " The Conservation of Energy," says, " That peculiar motion which is imparted... | |
| United States. Department of Agriculture - 1895 - 632 páginas
...food is consumed in the body. The unit commonly used in this measurement is the calorie, the amount of heat which would raise the temperature of a pound of water 4° F. The following general estimate has been made for the average amount of potential energy in 1... | |
| 1896 - 590 páginas
...by means of an apparatus called the calorimeter. The unit commonly used is the calorie, the amount of heat which would raise the temperature of a pound of water 4° F. Taking ordinary food materials as they come, the following general estimate has been made for... | |
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